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Derivative Financial Instruments (Schedule Of Open Natural Gas Derivative Positions) (Details) | 12 Months Ended
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Dec. 31, 2021 MMBTU $ / MMBTU
FERC Henry Hub Price Swaps Natural Gas Q1-Q4 2022 [Member] |  |
Derivative [Line Items] |  |
Volume Per Day (MMBtu/d) | MMBTU | 110,986 | [1]
Weighted Average Price Swap | 2.77 | [1]
FERC Henry Hub Price Swaps Natural Gas Q1-Q4 2023 [Member] |  |
Derivative [Line Items] |  |
Volume Per Day (MMBtu/d) | MMBTU | 4,959 | [1]
Weighted Average Price Swap | 3.65 | [1]
FERC Henry Hub Price Collars Natural Gas Q1-Q4 2022 [Member] |  |
Derivative [Line Items] |  |
Volume Per Day (MMBtu/d) | MMBTU | 164,342 | [2]
Weighted Average Floor Price | 2.78 | [2]
Weighted Average Ceiling Price | 3.55 | [2]
FERC Henry Hub Price Collars Natural Gas Q1-Q4 2023 [Member] |  |
Derivative [Line Items] |  |
Volume Per Day (MMBtu/d) | MMBTU | 23,000 | [2]
Weighted Average Floor Price | 3.32 | [2]
Weighted Average Ceiling Price | 4.63 | [2]
WAHA Natural Gas Basis Swaps Q1-Q4 2022 [Member] |  |
Derivative [Line Items] |  |
Volume Per Day (MMBtu/d) | MMBTU | 70,000 |
Weighted Average Differential To Henry Hub | (0.57) |
WAHA Natural Gas Basis Swaps Q1-Q4 2023 [Member] |  |
Derivative [Line Items] |  |
Volume Per Day (MMBtu/d) | MMBTU | 70,000 |
Weighted Average Differential To Henry Hub | (0.51) |
WAHA Natural Gas Basis Swaps Q1-Q4 2024 [Member] |  |
Derivative [Line Items] |  |
Volume Per Day (MMBtu/d) | MMBTU | 40,000 |
Weighted Average Differential To Henry Hub | (0.51) |
[1] | Related to the 2022 open positions, 10,986 MMBtu/d settle against the Inside FERC first of month Henry Hub index at an average price of $3.40 and 100,000 MMBtu/d settle against the end of month NYMEX index at an average price of $2.70. All 2023 open positions settle against the Inside FERC first of month Henry Hub index.
[2] | Price Collars settle against the Inside FERC first of month Henry Hub.

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- Definition The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. + References No definition available. + Details
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- Definition The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. + References No definition available. + Details
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